Which action is defined as to sign, complete, or perform?

The correct choice indicates that the term refers to the act of signing, completing, or performing a document or action. In legal and formal contexts, "execute" is often used to describe the process of making a document effective by signing it or carrying out its directives. For example, when a person executes a contract, they are not only signing it but also agreeing to fulfill the obligations contained within that contract.

Understanding this definition helps clarify how "execute" is appropriately used in various legal settings, such as in the creation of legal documents, court orders, or other formal agreements. It is a critical concept for professionals in fields related to law, business, and administration where the formalization of agreements is essential.

The other choices relate to entirely different concepts: extradition pertains to the formal surrender of an individual from one jurisdiction to another, exhibit refers to presenting or displaying evidence, and forum typically relates to a place where legal cases are heard or discussions take place. These definitions do not align with the actions of signing, completing, or performing a document.